Home / 7,680.93-11,512.08-3,515.10

Finding the Fourth Proportional to 7,680.93, 11,512.08 and 3,515.10

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Solution

The fourth proportional to 7,680.93, 11,512.08 and 3,515.10 is: 5,268.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.93 : 11,512.08 = 3,515.10 : x
  2. Step 2: Convert to fraction form
    7,680.93/11,512.08 = 3,515.10/x
  3. Step 3: Cross multiply
    7,680.93x = 11,512.08 × 3,515.10
  4. Step 4: Simplify right side
    7,680.93x = 40,466,112.41
  5. Step 5: Solve for x
    x = 40,466,112.41/7,680.93
  6. Step 6: Final answer
    x = 5,268.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.